Source location is so much more than that macro!! - it has file name, line number, and char number! That already makes the number of characters more similar if

Source location is so much more than that macro!! - it has file name, line number, and char number! That already makes the number of characters more similar if that’s your metric - it can be forwarded/passed around. It’s much harder to pass macros around - it can easily capture the caller’s location rather than the location of the macro